Does anybody know anything about "Old Macs"? I have a 128K that was one of the early "roll Out" units. i purchased it it while I was working for an Apple dealer in 1984. The serial # is F41215XLM0001. I am trying to determine if it is one of the units that is spposed to have the developer's signatures encsribed on the inside of the case. I do not have the tools to take it apart.